Home / 389,870.20-584,805.30-179,918.20

Finding the Fourth Proportional to 389,870.20, 584,805.30 and 179,918.20

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Solution

The fourth proportional to 389,870.20, 584,805.30 and 179,918.20 is: 269,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,870.20 : 584,805.30 = 179,918.20 : x
  2. Step 2: Convert to fraction form
    389,870.20/584,805.30 = 179,918.20/x
  3. Step 3: Cross multiply
    389,870.20x = 584,805.30 × 179,918.20
  4. Step 4: Simplify right side
    389,870.20x = 105,217,116,926.46
  5. Step 5: Solve for x
    x = 105,217,116,926.46/389,870.20
  6. Step 6: Final answer
    x = 269,877.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.